(a) A pipe 4.8m long is made of metal 30mm thick. If the external radius is 15cm, volume of metal in the pipe to the nearest cm

dhdhth

step-by-step explanation:

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

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knlknlkkn

step-by-step explanation: